As per your query the property not comes under ancestral property. The Supreme Court of India has said that women do not have the right to inherit ancestral property if their fathers died before September 9th, 2005. The view of the Supreme Court is that amended provisions of the Hindu Succession (Amendment) Act, 2005, do not have retrospective effect. The father would have to be alive on September 09, 2005, if the daughter were to become a co-sharer with her male siblings.
In this property all the person, (You,your two sister,brother and second wife of your father )had 1/5th share equally after the demise of your father.